Machine for attaching soles to shoes



1934- c. F. FREEMAN 1,981,694

MACHINE FOR ATTAGHING SOLES TO SHOES Filed OOt. 20, 1928 3 Sheets-Sheet l 7 00 Ft I 1 0 Q iZW.

Nov. 20, 1934. F REE AN 1,981,694

,MACHINE FOR ATTACHING SOLES TO SHOES Filed Oct. 20, 1928 3 Sheets-Sheet 3 Patented Nov. 20, 1934 UNITED STATES;

PATENT OFFICE 1,981,694 MACHINE FOR ATTACHINGVSOLES' 'ro SHOES 7 Charles F. Freeman, University City, Mo., assignor to Charles Tweedie, Jeflr'erson City, Mo.,'- as trustee Application October 20, 1928, Serial No. 313,88?

5 Claims. (Cl.'12'37) acted upon by fluid so as to press the sole against the upper, the cement being applied to the'sole and upper in order to attach them togethen.

After an interval suflicient to permit setting of "the cement, the pad is deflated or otherwise ma.-

nipulated to release its'pressure on the sole'in order to permit removal thereof g y One of the objects of this invention is to provide a machine whereby the operations of attach- 101mg a sole to a shoe may be more conveniently,

expeditiously and efiectively -periormed.

Another object is to provide a machine of the character described in which the operations are to a large extent automatic. c I r "I: Another object is to provide a machineof the character described, which is simple in construction, efiective in its action, and economical to manufacture.

Further objects willappear from the detailed "idescription taken in connection with the accom-- panying drawings, in which- Figure Us a perspective view of a machine embodying this invention.

Figure 2 is a detail of the fiuid'pressure con-. 'Inection.

Figure 3 is a perspective view showing another machine embodying this invention.

Figure 4 is a detail showing the fluid pressureconnection. r 1 Figure is a perspective view showing another embodiment of this invention.

Figure 6 is a detail showing one of the fluid pressure connections; and Figure 7 is a detail showinganother fluid pressure connection.

Referring to the accompanying drawings, designates a frame or base which may be of any suitable construction, which is provided with guides 2 for receiving a carrier 3 which is placed in position bythe operator standing on the other side of the base from that shown in Figure 1. This carrier is provided with a standard 4 whichmay be hinged thereto at 5 and having vertically adjustable therein a block 6 provided with 55 a fulcrum having an arm! whose-outer end construction- 1 attached vto the base by a stirrup 8. The arm is arrangedxto adjustably receive. a heel support 9 providedwith a pin engaging a socket in a last 10 and with a toe pad 11, also adjustable on the arm. The supportis-arranged to receive an in fiatable pad 12 whichmay be of any durable construction. and adapted to receive any suitable fluld. The pad inthe, present embodiment being arranged to receive air and provided with a nipple 13 having the usual spring-closed valve,

thestem of. this valve being shown at 14. The parts so far described,iwith the exception of the nipple and valve;may be of anysuitable or usual Arranged on the base a bracket 15 having a chuck 16 provided with an .inside tip 17. The

f chuck is arranged to make. an air-tight connection with the nipple while at that time the inside tip 17 is arranged to cooperate with the valve stem.14 .to open the same.. The chuck is connected to a suitable air .line'..18' in which is interposed a valve casing 19, the movable element 20 of which is connected with an arm 21, while a lug 22 on this movable element is arranged to engage a stop 23 .to limit its movement. The arm 21 is connectedby link 24 with a treadle 25 raised by a spring 26v so. as to normally hold the movable elementz-of thewalve-in position where-it connects with the outside air through the port 27. When, however, the treadle is depressed the chuck will be connected with thepipe 18 to receive air.

The operation of this particular embodiment is as follows: Assuming a shoe A to be in posi-' tion and the pad inflated, the air being retained in the pad by the valve 14; and assuming that the cement has set so that the sole B will be attached to the upper, the operator. places-the carrier3 between the g'uides'and pushes it toward the chuck 16. causes the valve stem 10 to engage the tip 17 soas to open the valve and release the air from thepad. The stirrup 8 can now be removed from the base, the arm' '7 swung over, and the shoe and its last removed. The operator will now apply cement to another shoe and upper and place the same in position, as shown in l igurev 1, with, however, the'pad deflated. He will then step 'on the treadle 25 thereby connecting the chuck with the air line 18 and inflating the padl After the pad is inflated the carrier is withdrawn and'placed ona rack, or on any other suitable appliance or support, until the cement has again set, the valve 14 closing upon the removal of the carrier so as to retain the pad inflated.w J

In the embodiment shown in Figures 3 and 4, a series of carriers 3 are arranged for movement along a frame comprising the side piece 30 and rollers 31 carried by suitable brackets or legs 32. A chuck 16 and valve 19 connected with the treadle 25 are provided, as before.

Each carrier may be provided with a lug 33 arranged to engage with arms 34 and 35 fixed to a rock shaft 36 having an arm 3'7 engaged by a spring 38. The rock shaft also has an arm 39 engaged by a pawl 40 pivoted to a bar 41 connected to a treadle 42 normally held in raised position by a spring 43. The pawl 40 is held towards the arm by a spring 44 and has a cam surface 45 engaging a pin 46 on a bracket 4'7.

The construction is such that when the treadle 42 is depressed the arm 39 will be depressed so as to partially rotate the rock shaft 36 against the tension of its spring 38. At the limit of the movement the treadle after the engagement of cam 45 with the pin 46 moves the pawl out of engagement with the arm 39, thereby permitting it to return to normal position. When the rock shaft is rotated against the tension of its spring 38, the arms 34 and 35 will disengage from the lugs 33. The support 30 is raised on an incline so that when such disengagement takes place the carrier will travel to the right of Figure 3, from arm 34 to arm 35. Before, however, the lug 33 on the carries reaches the arm 35, it will have returned so as to catch the next lug 33.

In the operation of this machine shoes with pads inflated may be placed on the frame, which may be arranged in a circuit. When a given carrier reaches the operator, the operations being timed so that the cement will beset, it and the next succeeding carrier are arrested by arms 34 and 35. The frame 3031 inclines downwardly slightly towards the operator who stands on the other side of the frame, as shown in Figure 3, and this frame is made of sufiicient width so that the nipples 13 and valve 14 will clear the chuck 16 When a. carrier with a shoe thereon is in front of the operator and arrested by the engagement of the lug 33 with the arm 35, he will move the carrier forwardly to engagethe nipple with the chuck; this causes deflation of the pad by the engagement of valve stem 14 with the tip 17 The shoe can now be removed and another one placed in position in the manner hereinafter described. The operator will then again press the carrier towards the chuck and depress the treadle 25 so as to inflate the pad. The treadle 42 is then depressed so as to release the carrier on which the shoe has been placed and permit. the next carrier to move into position while the carrier next succeeding it is again arrested in a position adjacent. It will be understood that the frame 3031 can extend along for any suitable distance and in a circuit, as heretofore described, so that a carrier with a shoe thereon can travel for a given time until the cement has been set when it will again move to position to have the shoe removed and another one placed on the carrier.

In the construction shown in Figures 5, 6 and '7, a frame or support 1 is provided with guides 2 as in Figure 1. The chuck is shown at 16, the treadle at 25, and valve casing at 19. The pad 12 is in this case provided with an additional nipple 50 provided with its valve, the stem on which is shown at 51. The chuck is, however, placed in front of the operator.

Arranged in front of the frame 1 is a traveling or movable frame 52 provided with guides 53 for receiving the carrier 3. This traveling frame may be of any suitable construction, the one in the particular embodiment being in the form of a spider mounted on trunnions 54 suspended from a bracket 55 from the ceiling or by suitable supports. It will be understood, of course, that this traveling frame may be in the form of a suitable conveyor arranged to travel in any desired circuit. The traveling frame has an air line or fluid pressure connection 56 extending to a position between each pair of guides 53 and terminates in a chuck 57 in position to receive the nipple 50, this chuck being also provided with the usual tip 58 to receive the valve stem 51. A suitable stop 59, manipulated by the operator, is

' arranged to cooperate with stops 60 on the traveling frame so that a pair of guides 53 may be positioned opposite the guides 2.

The operation of this machine is as follows: Assuming that the traveling frame is loaded with carriers and that in one of these the cement has set, the frame is moved to position with a carrier 3 in alignment with the guides 2 and arrested by the cooperating stops 59 and 60. The operator will then withdraw a carrier from the traveling frame and move it with its stem 13 in cooperation with the chuck 16 so as to deflate the pad. The shoe is then removed and placed on the rack while another is placed in position. The treadle 25 is now depressed so as to inflate the pad. The carrier is then moved into the travelingq'frame thereby causing the stem 50 to cooperate with the chuck 57 and connect it with its air line 56. The traveling frame is then moved another step. It will be noted that in this machine, the pad is first inflated and then is connected with another air line so as to maintain the air pressure therein in case leaks should occur. It will be understood that the traveling frame is made of suflicient dimensions so that during one complete rotation the cement will become set. It will be. understood that the traveling frame may be operated by mechanism and through power as by the provision of clutch control gearing controlled. by a treadle or hand lever.

In the particular embodiments illustrated the expansible pad is illustrated in the form of an air bag, which may be inflated by the admission of air pressure and deflated by the exhaust or,

release of the air therefrom. It is, however, understood that any other fluid or liquid may be used for inflating this pad. It will, furthermore, be understood that as in the case of an inflated or expansible pad this pad may be simply of a yelding character being constructed for that purpose in any suitable manner, as by filling it with any desired material to secure a yielding structure, or even with a liquid or air, or by constructing it of a material such as sponge rubber. Where inflation and deflation is not resorted to, but the pad simply has a yielding structure, then the clamping of the shoe and its sole between its support and its pad may be accomplished manually by the depression of the arm '7 and its locking in position by the stirrup 8; or suitable mechanism may be provided for accomplishing this result. This can be accomplished when the carriers are placed on the support. Thus in Fig. 3 it will be seen that the carrier can be unloaded at the station as shown and reloaded again while the same operations may be accomplished with the construction shown in Fig. 5.

It will, therefore, be seen that in the invention accomplishing these objects, a machine is provided whereby the operations of applying its soles to shoes may be accomplished expeditiously and in simple and effective manner. While the invention is particularly applicable to the operations of attaching an out sole to a shoe by means of cement, it will be understood that it has various applications particularly to the shoe machine art which will be understood by one skilled in the art.

It will furthermore be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations; that is, contemplated by and Within the scope of the appended claims.

It is therefore obvious that various changes may be made in the details and construction,

Within the scope of the appended claims, without departing from the spirit of this invention.

It is therefore to be understood that this invention is not to be limited to the specific details shown and/or described,

Having thus described the invention, what is claimed is:

l. A machine for attaching soles to shoes comprising, a movable frame, a carrier mounted removably thereon, a shoe support and a 00- operating expansible sole-engaging pad on said carrier, a fluid pressure connection on said frame, and means operating upon placement of said carrier on said frame adapted to couple its pad with said connection.

2. A machine for attaching soles to shoes comprising, a movable frame, a carrier mounted removably thereon, a shoe support and a cooperating expansible sole-engaging pad on said carrier, a fluid connection on said pad, and means operating upon removal of said carrier from said frame adapted to open said connection.

3. A machine for attaching soles to shoes comprising, a movable frame, a carrier mounted removably thereon, a shoe support and a cooperating expansible sole-engaging pad on said carrier, a fluid connection on said pad, a fluid pressure connection on said frame, means operating upon placement of said carrier on said frame adapted to couple said connections, and means operating upon removal of said carrier from said frame adapted to open said pad connection.

4. A machine for attaching soles to shoes comprising, a movable frame, a series of carriers mounted removably thereon, a shoe support and a cooperating expansible sole-engaging pad on each carrier, a fluid pressure connection on said frame, and means operating upon placement of a carrier on said frame adapted to couple its pad with said connection.

5. A machine for attaching soles to shoes comprising, a movable frame, a series of carriers mounted removably thereon, a shoe support and 

